Main Line (2...Qxd5)
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5

After 3...Qa5, Black avoids losing tempo to Nc3 and plans ...Nf6...c6...Bf5...e6, often castling queenside. A reliable system with clear plans.
The fastest way to challenge e4. Direct, tactical, and easy to learn.
1.e4 d5

The Scandinavian Defense (1...d5) challenges White's e4 pawn directly from move one. Unlike the Sicilian or French, there's no preparation, just immediate central confrontation. After 2.exd5, Black recaptures with the queen (2...Qxd5) or pushes ...Nf6 (Modern Scandinavian). The opening is one of the easiest to learn: Black's plans are clear, piece development is natural (...Nf6...Bf5 or ...Bg4...e6, castling queenside), and the theory load is minimal compared to mainstream Black defenses.
Each variation below comes with a diagram and the main plan. Click "Train this opening" to drill every line with spaced repetition.
1.e4 d5 2.exd5 Qxd5 3.Nc3 Qa5

After 3...Qa5, Black avoids losing tempo to Nc3 and plans ...Nf6...c6...Bf5...e6, often castling queenside. A reliable system with clear plans.
1.e4 d5 2.exd5 Nf6

Black delays recapturing the pawn. After 3.d4 Nxd5, Black plays a flexible setup without committing the queen. Popular among players who dislike the Qa5 setup.
1.e4 d5 2.exd5 Nf6 3.c4 e6

Black sacrifices a pawn for rapid development and active piece play. After 4.dxe6 Bxe6, Black has a lead in development and open lines.
The Scandinavian is one of the easiest defenses to learn. Focus on the 2...Qxd5 3...Qa5 setup, the plan repeats in almost every game.
Study the Modern Scandinavian (2...Nf6) as an alternative. It avoids the Qa5 awkwardness and gives sharper positions.
Learn the Icelandic Gambit and the 3...Qd6 system (popularized by Tiviakov). The Qd6 queen is safer than Qa5 once you know the theory.
Yes, it's played at the grandmaster level (Tiviakov, Carlsen in rapid games) and is one of the most reliable defenses for club players. The Scandinavian gives Black a playable position from move 2 with minimal theory.
After 2...Qxd5 3.Nc3 Qa5 (or Qd6 or Qd8), White does gain a tempo, but not a decisive one. Black's solid pawn structure (c6, e6, d5-queen retreats fine) compensates. Many GM games have been won from the Black side.
For solidity: 2...Qxd5 3...Qa5 with the plan ...Nf6...c6...Bf5. For flexibility: 2...Nf6 Modern Scandinavian with ...Nxd5 and ...g6. Both are fully playable.
Very. The plans are clear (develop pieces naturally, castle queenside, play for ...c5 or ...e5 breaks), and there are few forcing lines to memorize. One of the best openings for adult improvers.
Only against 1.e4, if White opens with 1.d4 or 1.c4, you need a different Black repertoire. The Scandinavian pairs well with something like the Slav Defense (1.d4 d5 2.c4 c6) for a consistent ...c6/...d5 approach.
Every variation above is a drill on ChessAtlas. Spaced repetition schedules each move so you never forget a line again. Free to start — no credit card.